Power Over Ethernet (Poe) - ZyXEL Communications GS1100-8HP User Manual

Chapter 1 Getting to Know Your Switch

1.4 Power Over Ethernet (PoE)

The PoE function is available for GS1100-8HP and GS1100-10HP.
Ports 1 to 4 on the GS1100-8HP are IEEE 802.3at High Power over Ethernet (PoE) compliant and
can supply power of up to 30W per Ethernet port and up to the total PoE power budget per Switch.
Ports 1 to 8 on the GS1100-10HP support both the IEEE 802.3af Power over Ethernet and IEEE
802.3at High Power over Ethernet standards. The ports supply power of up to 30W per Ethernet
port and up to the total PoE power budget per Switch.
The Switch is Power Sourcing Equipment (PSE) because it provides a source of power via its
Ethernet ports. A powered device (PD) is a device such as an access point or an IP phone, that
supports PoE (Power over Ethernet) so that it can receive power from another device through a 10/
100/1000 Mbps Ethernet port.
In the figure below, the IP camera and IP phone get their power directly from the Switch. Aside
from minimizing the need for cables and wires, PoE removes the hassle of trying to find a nearby
electric outlet to power up devices.
Figure 4 Powered Device Examples
GS1100 Series User's Guide
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